Quantitative Aptitude - Arithmetic Ability Questions

Find the greatest length which can be used to measure exactly three cloth pieces of lengths 1.26 m, 1.98 m and 1.62 m respectively.

If 170% of a number added to 66, then the result becomes equal to twice of the number. What is the number?

If the radius of a circle is increased by 16%, its area increases by

If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 )?

12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work?

The rate of simple interest per annum at which a sum of money double itself in 16 2/3 yrs is

If {12(a-b)}2+ab=p(a+b)2, then the value of p is